common species throughout Belgium, sometimes abundant in the suited
larva lives in the stem Juncus subuliflorus, Scirpus lacustris,
S. cespitosus or Cyperus longus. Pupation takes places
in a slight cocoon in the larval feeding place.
adults fly in two overlapping generations from the beginning of
May till the end of July, and from the beginning of August till
mid September. The adults come to light.
Antwerpen, Willebroek, 09 August 2003.
(Photo © Leo Janssen)